Re: manipulating the POINT data type

"Floyd Shackelford" <floyds(at)4peakstech(dot)com> writes:
> how do i manipulate the POINT data type in a select statement? how do i
> reference the X and Y portions of the point? for instance, can i select the
> X or Y portion of a POINT?

Yeah, pretend it's an array with indexes 0,1.

regression=# create table p (f1 point);
CREATE TABLE
regression=# insert into p values('(12,34)');
INSERT 437746 1
regression=# select f1[0] from p;
f1
----
12
(1 row)

regression=# select f1[1] from p;
f1
----
34
(1 row)

regression=# update p set f1[1] = 55;
UPDATE 1
regression=# select * from p;
f1
---------
(12,55)
(1 row)

regression=#

regards, tom lane